baber/WOPTO huggingface dataset:
Patent GB-1188035-A (GB)
Title: Recovery of Copper.
Inventor: MAYOR YOLAND PIERRE
IPC: C22B15/00
Filed: 1967-11-24
Abstract: 1,188,035. Recovery of copper. Y. P. P. MAYOR,. and P. F. TORD. 24 Nov., 1967 [25 Nov., 1966], No. 53537/67. Heading C1A. Copper in the final form of copper sulphate is extracted from an elementary copper-containing material by treating with an extracting solution of cupric chloride and' an alkali metal- or an alkaline earth metal chloride, and oxidizing the resulting solution to precipitate copper' oxychloride which is separated and treated with sulphuric acid to form copper sulphate which is separated' by crystallization. The extracting solution is recovered by mixing the copper oxychloride and copper sufphate mother liquors. A non-ionic wetting agent such as the sucrates or polyoxyethylene phenols may be added to the extracting solution in a proportion of between 0À01 and 0-1% by weight of the extracting solution. The starting material may be iron ores, pyrites and pyrrhotite cinders, ores containing elementary copper and copper ores such as chalcopyrite. These materials may be roasted and, if necessary, reduced, to form the coppercontaining material.
Patent GB-1487414-A (GB)
Title: Films and process for their manufacture
IPC: H01G4/20
Filed: 1974-12-12
Abstract: Thermoplastic laminated films having a filler-containing layer with a filler content of 10 to 70% by weight are resistant to cracking under mechanical stressing. They are suitable as capacitor films and drawing films.
Patent GB-1224659-A (GB)
Title: Improvements in or relating to end fittings for flexible drive cables
Inventor: RUTTER KENNETH AUGUSTINE
IPC: F16C1/08
Filed: 1968-11-15
Abstract: 1,224,659. Releasable fastenings. SMITHS INDUSTRIES Ltd. 26 Sept., 1965 [15 Nov., 1968], No. 54208/68. Heading E2A. [Also in Division F2] An end fitting 2 for the outer sheath 6 of a flexible cable 7 (either push-pull or rotation) comprises a hollow plastics body with one end 4 adapted to fit the sheath 6 (e.g. by bonding, moulding in situ, or clamping by a swaged collar 5) and the other end 10 having an opening defined by a smooth edge, and having between its ends latching means comprising an aperture 20 into which extends an arm 22 resiliently urging a projection 26 to project through the aperture into the hollow body, the arm being integral with the body and the projection. The fitting 2 may be mounted on a spigot 45 (e.g. of a speedometer) with a chamfer 47 and groove 49 to effect latching of the arm 22 which may be released by depressing the end 27 of an extension 28 thereof. The sheath 6 may be sealed by a chamfer 48 on the spigot 46 either engaging a rubber washer or distorting a cylindrical lip 40 on the fitting. The shaft 7 if used for rotation, may have a collar 36 fixed thereto.
Patent GB-1236865-A (GB)
Title: Improvements in or relating to piston-operated driving or driven machines
IPC: F02F1/24
Filed: 1969-11-07
Abstract: 1,236,865. Cylinder heads. KLOCKNERHUMBOLDT-DEUTZ A.G. 7 Nov., 1969 [9 Nov., 1968], No. 54762/69. Heading F2T. [Also in Division F1 In a light metal cylinder head a layer of a harder material 3, Fig. 2, e.g. hardened steel or a hard steel alloy, is provided on a seating face with such secure adhesion between the two that relative movement between them is excluded. The layer may be deposited electrolytically or chemically or by spraying. The cylinder head may be used in I.C. engines or pumps.
Patent GB-1212927-A (GB)
Title: A toy roadway set
Inventor: HAJI SADAO
IPC: A63H18/02
Filed: 1968-11-20
Abstract: 1,212,927. Vehicle and track. S. HAJI. 20 Nov., 1968 [22 Nov., 1967; 14 Oct., 1968], No. 55046/68. Heading A6S. A vehicle, A, has a front axle carrying frame, 21, rotatable about the slightly forwardly inclined vertical pivot, 20; rear wheels 13a, 13b, driven by either a clockwork motor or a battery motor, 18, mounted closer together than the front wheels, 23a, 23b; and a weight distribution provided to prevent the vehicle from falling off the track; so that when one front wheel, 23a, of the vehicle, runs off the level part 24, of the track B 2 , onto one of the inclined surface portions, 25, running along the edges of the track, than the decreased friction on front wheel, 23a, causes the frame, 21, to rotate about the pivot, 20, in such a direction that the vehicle is steered away from the edge of the track and thus causing the vehicle to travel in a zig-zag manner along the track. The vertical pivot, 20, is fixed to the frame, 11 of the vehicle. The track is made up of a plurality of straight, curved and crossover track sections, each provided with a means for joining said sections together. The crossover section (not shown) has four sides each provided with joint means 'to which other track sections are connected.
Patent GB-557352-A (GB)
IPC: G03C7/04
Abstract: 557,352. Filters absorbing ultra-violet rays. MURRAY, H. D., and DUFAY-CHROMEX, Ltd. Feb. 13, 1942, No. 1967. [Class 97 (i)] A filter absorbing ultra-violet rays consists of or includes a transparent film or layer of gelatine or cellulose acetate with or without a support therefor, which film or layer incorporates a substance of the general formula: where R is a benzene ring which may itself be substituted and R<SP>1</SP> is a hydrogen atom or a substitute the nature of which may be chosen to bring the radiant energy absorption of the substance within the desired wavelength region. Suitable substances are benzal-p-aminophenol, benzal-p-anisidine, anisal-p-aminophenol, p-nitrobenzalaniline, benzal-p-nitroaniline, and vanillalp-aminophenol (all for use with cellulose acetate), and p-hydroxybenzalaniline and p-hydroxybenzalaminobenzene-p-sulphonic acid (suitable for use with gelatine as sodium salts). Compounds not wholly satisfactory for use with cellulose acetate are p-hydroxybenzalaniline, p-hydroxybenzal-panisidine, anisal-aniline, and benzal-p-aminoacetophenone. Compounds not wholly satisfactory for use with gelatine are benzal-p-aminophenol, benzal-p-anisidine, p-hydroxybenzalp-anisidine, benzal-p-nitroaniline, p-nitrobenzalaniline, anisal-p-aminophenol, and anisalaniline. In example 1, a solution of benzal-p-aminophenol in acetone is applied to the surface of cellulose acetate. In example 2, a solution of anisal-paminophenol in acetone is applied to the surface of cellulose acetate. In example 3, a solution of p-hydroxybenzalaniline in aqueous alcohol containing sodium hydroxide is added to an aqueous gelatine solution, water added, and the mixture cast on glass, dried, and stripped off. Specifications 551,473 and 551,474 are referred to.
Patent GB-1497415-A (GB)
Title: Apparatus for loading and unloading discrete goods or bulk material into or from vehicles such as ships
IPC: B65G67/60
Filed: 1974-12-30
Abstract: 1497415 Loading ships; spiral endless belt and shoot conveyers FORDERTECHNIK HAMBURG HARRY LASSIG KG 30 Dec 1974 [26 Jan 1974] 56068/74 Headings B8E B8A and B8S Apparatus for loading or unloading a ship with discrete goods or bulk cargo comprises a portal 10, running on a quay, having a vertically adjustable beam 12 containing a belt conveyer 30 fed by a feed conveyer 31 on the portal 10. The free end of the boom supports a vertical conveyer 15 comprising a tube 35 fixed to a platform 38 and a cylindrical support 37 between which is mounted an endless helical belt conveyer 14 passing over guide and driven rollers and having its edges running in guide members on the support 37 and tube 35. Rollers carried by the conveyer may alternatively roll in profiled rails. The motor to drive the conveyer may be in the tube 35. A non-driven helical shoot 46 is mounted on a tube 45 a transfer roller being provided between the conveyer and shoot. The tube 45 can be inserted in the tube 35 and by interengaging projections 60, 61 can be turned and extended below the conveyer 14 to adjust the height of the point of discharge. Either the tube 35 or the support 37 may be of open construction to give access to the conveyer. If the support 37 is solid it may have an insulating layer or include refrigerating elements.
Patent GB-1399353-A (GB)
Title: Electrical lamps
IPC: F21V19/00
Filed: 1971-12-03
Abstract: 1399353 Lamps LUCAS ELECTRICAL CO Ltd 18 Oct 1972 [3 Dec 1971] 56191/71 Heading F4R  A bulbholder has a flange the side edges of which engage detachably in mutually facing recesses in a pair of mounting posts secured inside a lamp body. The side edges of the flange and the sides and bases of the recesses taper inwardly.
Patent GB-1457539-A (GB)
Title: Simulated fires
IPC: F24C7/00
Filed: 1973-12-05
Abstract: 1457539 Imitation solid-fuel fires PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 5 Dec 1973 56319/73 Heading F4W The subject-matter of this Specification is substantially the same as that described in Specification 1,457,540, but the claims are concerned with an imitation solid fuel fire comprising a translucent screen behind which is located a fuel simulating member that is secured to a lower part of the screen, at least one lamp positioned to illuminate the rear side of the screen and a flicker device associated with the lamp, wherein the fuel simulating member is a sheet of rigid transparent material including opaque areas. The sheet may be made of a plastics material with a pigmented deposit formed by painting or printing, with the opaque areas spaced to produce an effect of separate fuel pieces, or a glass sheet with an opaque paper pattern stuck thereon. The sheet may be perforated between the opaque areas.
Patent GB-1367690-A (GB)
Title: Control system for a gas turbine engine
IPC: G05D23/00
Filed: 1971-12-03
Abstract: 1367690 Automatic control of temperature in gas turbines MOTOREN-UND TURBINENUNION MUNCHEN GmbH 3 Dec 1971 [ 29 Dec 1970] 56349/71 Heading F1G [Also in Division G3] In a gas turbine engine, the gas temperature downstream of a combustion chamber 2 Fig. 1 is detected by thermocouple 9 the output of which is used to control the said temperature by adjustment of fuel feedrate and/or the angular position or pitch of guide vanes 8 in the gas input to a power turbine 3a. The output of thermocouple 9 is amplified at 10 and any error due to time delay in the thermocouple response is compensated for by a correction network 11 to produce a signal A. The voltage of this signal is compared in a temperature regulator T with a nominal voltage produced by a signal generator or transmitter 14 as a function of engine operating parameters (unspecified). Any difference therebetween is amplified at 12 and fed to an actuator 15. The actuator 15 causes a control unit 6 to adjust the quantity of fuel metered to the combustion chamber injector nozzle 7, the fuel from a tank 4 being fed under pressure by an engine driven pump 5, and to adjust the stator guide vanes 8. The correction network illustrated in Fig. 4 (not shown) includes two time constants circuits in the feedback path of an operational amplifier the output of which is the signal A and the input of which is the amplified thermocouple voltage.
Patent GB-1255370-A (GB)
Title: Adsorbent for drinks
IPC: C12H1/044
Filed: 1969-11-21
Abstract: 1,255,370. Adsorbent for drinks. BRAUEREI-INDUSTRIE A.G. FR. Nov.21, 1969 [Nov.22, 1968], No. 57070/69. Heading C6E. [Also in Division C1] An adsorbent suitable for treatment of fermentable or fermented liquids, particularly beer or wine and their precursors, wort and must, is based on montmorillonite minerals and contains added highly dispersed free silica that has been produced in situ [See Division C1] as non-gelatinous silica that is localized between the layers of the mineral.
Patent GB-1236990-A (GB)
Title: Chopper incorporating insulated gate field effect transistors
IPC: H03F3/393
Filed: 1968-12-03
Abstract: 1,236,990. Field effect transistor chopper circuits; pulse modulation circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 3 Dec., 1968 [6 Dec., 1967], No. 57275/68. Headings H3T and H4L. A chopper circuit comprises four insulated gate field-effect transistors 1, 1<SP>1</SP>, 2, 2<SP>1</SP> in bridge formation with the input applied at 3, 4 across one diagonal and the output derived at 5, 6 across the other. With this arrangement switching spikes cancel. As shown, the switching waveform is applied across the gate biasing resistors, in one plane to 1 and 2<SP>1</SP> and the other to 1<SP>1</SP> and 2. The chopper is shown used in a chopper type amplifier, the output of the chopper being applied to a differential F.E.T. amplifier having a common tail transistor 22 and the output of the amplifier applied through integrating circuits 27, 29 and 28, 30 rejecting common mode signals to an amplifier 26 and a phasesensitive rectifier 31. The gating transistors are low capacitance types formed as an integrated circuit to preserve balance.
Patent GB-1409922-A (GB)
Title: Hatch cover for use in boats
IPC: B63B19/12
Filed: 1972-12-13
Abstract: 1409922 Hatch covers; ventilators MOTEURS GOIOT 13 Dec 1972 [30 Dec 1971] 57578/72 Heading B7S [Also in Division F4] A hatch cover or ventilation assembly comprises a hatch cover 1, frame 2 and respective articulation elements disposed along opposite edges to mount the hatch cover on the frame. Each of the articulation elements comprises a female lug such as 12 on the frame acting as a bearing for a pin such as 16 carried by a respective male lug such as 11 on the cover and a female lug such as 9a on the cover acting as a bearing for a pin such as 17a carried by a respective male lug such as 10a on the frame. The arrangement is such that the pins of either one of the articulation elements may be disengaged from the female lugs thereof by pivoting the hatch cover at the other of the articulation elements relative to the frame.
Patent GB-1339572-A (GB)
Title: Method of preparing calcium sulphite for use as a filler for plastics
IPC: C01F11/48
Filed: 1970-12-07
Abstract: 1339572 Calcium sulphite LION FAT & OIL CO Ltd 7 Dec 1970 [9 Dec 1969 12 Feb 1970] 58014/70 Heading C1A [Also in Division C3] Calcium sulphite is prepared by a method comprising the steps of reacting calcium oxide with hot water to effect a hydration reaction and neutralizing the product slaked lime with a gas containing sulphur dioxide passed into the hot suspension until the pH is within the range 7-13, in both reactions the concentration of calcium compound is 5-20% by weight and the reaction temperature above 70‹ C. The pH after the passing of the sulphur dioxide is preferably 8À5-10 and the temperatures in the two reactions are conducted preferably 90-100‹ C. The sulphur dioxide may be obtained by oxidation of hydrogen sulphide obtained by separating hydrocarbon from a by-product gas such as one produced by hydrogenation of thermocracking of petroleum fractions. Preferably the concentration of the calcium hydroxide is below 5-15%. The suspension of calcium hydroxide may contain water-soluble inorganic salts such as halides, sulphates or nitrates of sodium, potassium, calcium, magnesium, aluminium to an extent of less than 1%. Ammonia or a surface active agent may also be present. The method may be performed in batchwise operation or continuously. In the latter case a plurality of reaction vats, preferably 3 or 4, may be employed. The bulk of the slaking is carried out in the first vat and 1À3-1À7/n of total amount of sulphur dioxide is preferably introduced into this part.
Patent GB-1285085-A (GB)
Title: Plasma display panel apparatus
IPC: G09G3/28
Filed: 1969-11-28
Abstract: 1285085 Matrix displays INTERNATIONAL BUSINESS MACHINES CORP 28 Nov 1969 [19 Dec 1968] 58279/69 Index G4H 3G 6A 6B 6E 7A1 7B 86 9E 13D Display apparatus comprises a gas panel (1, 2) Fig.3 (not shown), first and second crossed conductor arrays X1-X21, (T1-T21) and associated with each array a plurality of selection lines 30- 36, (230-236) each capacitively coupled to a different plurality of the associated conductors, the arrangement being such that the same number and at least two lines are energized to apply firing potential to a conductor. Sustaining potentials of 10 V., 60 c.p.s. are connected, in opposite phase to all X and Y conductors from sources 23, (22) and firing potentials of 600 V., 50 kc/s. are connected in opposite phase to selected conductors from sources 20, (21). The source 20 is connected to the X conductors via amplifiers 40...46 selection lines 30...36 and condensers 50...91. The amplifiers are controlled by a selection register 115 of flip-flops 120...126 supplied with control signals on lines 130...136 and a reset signal on line 137. Applying signals to any selected pair of lines, e.g. 130, 131 sets flipflops 120, 121 to condition amplifiers 40, 41 to pass signals from the source 20 to lines 30, 31 and apply a potential V 1  via each capacitor 50, 52 ...51, 62...&c. to conductors X1...X11. This results in a combined potential of 2V 1  only on conductor X1 and thus with a similar potential on a Y conductor is sufficient to ignite the cell at the intersection of the conductors. The potential on the Y conductor is produced by a similar arrangement. After igniting the registers are cleared and signals applied to further pairs of flip-flops until a picture is built up. The picture is removed by disconnecting the potential from source 23. The maintaining and igniting potentials applied to X and Y conductors need not be equal.
Patent GB-1279598-A (GB)
Title: Safety circuit in a vehicle braking-force control system
IPC: B60T17/22
Filed: 1970-12-10
Abstract: 1279598 Antiskid braking systems DAIMLER-BENZ AG 10 Dec 1970 [12 Dec 1969] 58756/70 Heading F2F In a vehicle antiskid braking system in which each wheel 10 is provided with its own pulse generator 13 supplying at least one signal upon excessive deceleration and at least one signal upon a predetermined re-acceleration the two signals being combined in an electronic circuit 16 which actuates brake control elements such as a valve or valves 19, there is provided a safety circuit comprising a safety relay 22 having contacts, normally open, which are closed when the relay is energized, connected in series with a trigger relay 18, actuated by the electronic circuit, the relay 22 being controlled through a first timing element 24 by actuation of the valve 19 and through a second timing element 25 by means of a pulse resulting from electronic combination of the deceleration and re-acceleration signals and by the response time of the two timing elements exceeding the maximum actuation period occurring in normal operation. The deceleration and re-acceleration signals are so combined with the use of an AND gate 32 that fresh timing is initiated upon cessation of the reacceleration signal when a deceleration signal is present.
Patent GB-1450450-A (GB)
Title: Electrostatography
IPC: G03G15/16
Filed: 1973-12-21
Abstract: 1450450 Printing from developer electrostatic images XEROX CORP 21 Dec 1973 59530/73 Heading B6C  In an electrostatographic process in which developer on a photoconductive plate is transferred in image configuration to a receptor material, the latter is pressed against the plate under air pressure at the transfer station. In one embodiment, Fig. 1 (not shown), a photoconductive surface on a rotary drum 1 is charged and exposed; the latent image is developed using a liquid developer and transferred to a copy sheet 5 at station (6). This station includes an air chamber 11, Fig. 2, provided with a porous or perforated wall 13, whose perforations may be angled in the direction of travel of the sheet, Fig. 4 (not shown). Air under pressure is directed through the wall 13 when the leading edge of a sheet is sensed. This arrangement prevents set-off of developer on to the transfer apparatus in the case of faulty feed or when the copy sheet is narrower than the developed image area.
Patent GB-1453477-A (GB)
Title: Photographic cameras
IPC: G03B7/089
Filed: 1973-12-27
Abstract: 1453477 Exposure control  ASAHI KOGAKU KOGYO KK 27 Dec 1973 [30 Dec 1972] 59744/73 Heading G2A A camera has means for providing a signal representing incident light and a signal representing the aperture setting, and also means controlled by a switch for storing a resultant of the two signals, the switch being actuable automatically on camera operation and also manually from a member external of the camera. As shown, the incident light falling on a light-sensitive element 3 in series with a logarithmic compression element 4 produces a signal which is fed to an amplifier 7. A variable resistor 5 in series with a logarithmic compression element 6, which can be set to correspond with a diaphragm value, also produces a signal fed to amplifier 7. The output from the amplifier passes to a memory capacitor 10 via switches 8 and 9. Switch 9 is operated automatically by the camera mechanism, and switch 8 is operated manually from outside the camera. (Switches 8 and 9 may be replaced by a single switch operable selectively in either manner.) The output from capacitor 10 is passed to an amplifier 13 together with information from a variable resistor 11, in series with a logarithmic compression element 12, which is adjusted in accordance with the sensitivity of the film. The overall information is passed via a logarithmic expansion circuit 14 to an electromagnet 19 for closing the shutter to terminate the exposure. The arrangement enables the operator to adjust the diaphragm setting after the light intensity has been recorded and stored.
Patent GB-1254855-A (GB)
Title: Electronic goniometer
IPC: G01S1/50
Filed: 1968-12-19
Abstract: 1,254,855. Aerials; radio navigation; amplitude modulation. INTERNATIONAL STANDARD ELECTRIC CORP. 19 Dec., 1968 [29 Dec., 1967], No. 60322/68. Headings H3R, H4A and H4D. [Also in Division G4] In apparatus for producing a rotating directional radiation pattern electronically a carrier voltage E is applied to balanced modulators M1, M2 directly and via a 90 degree phase shift respectively together with a modulation voltage U 1  directly and via a 90 degree phase shift respectively, and the ensuing sidebands-only signals m 1 , m 2  are applied to a bridge circuit B 1  to form sum and difference signals which correspond to the upper and lower sidebands respectively and are power amplified before application to a further and similar bridge circuit B 2  which forms signals of the same form as those delivered by modulators M 1 , M 2 . Phase-regulating means may be provided for the carrier, Fig. 4 (not shown). Each balanced modulator may comprise a transistor stage followed by a diode bridge, Fig. 2 (not shown).
Patent GB-1246818-A (GB)
Title: Process for the oxidation of alkylaromatic compounds
IPC: B01J31/22
Filed: 1968-12-20
Abstract: 1,246,818. Oxidation catalysts. SUN OIL CO. 20 Dec., 1968 [26 Dec., 1967; 1 July, 1968; 31 Oct., 1968], No. 60696/68. Heading B1E. [Also in Division C2] A catalyst for the oxidation of alkylaryl compounds comprises hexamethylphosphoramide and a lanthanide metal salt, which may be a neodymium or dysprosium salt.
Patent GB-1273040-A (GB)
Title: Coffee-brewing packet
Inventor: HEUSINKVELD MERLYN RODNEY
IPC: A23F5/12
Filed: 1969-12-18
Abstract: 1,273,040. Coffee packet. PROCTER & GAMBLE CO. 18 Dec., 1969, No. 61727/69. Heading B8C. [Also in Division A2] A coffee packet for brewing coffee comprises a pouch of water permeable material, for example rayon, polypropylene, polyacrylic, polyester, nylon, cotton, hemp, or mixtures thereof, which may be woven or non-woven and preferably have an average pore size of 5-1000 microns and a thickness of 0À002-0À012 inch, containing coffee flakes obtained by roll-milling roasted, preferably ground, coffee, which flakes preferably have a thickness of 0À0005-0À030 inch and a density of 0À40-0À60 grams/cc. The pouches may be made by heat-sealing using a heat-sealable binder.